130561099780 has 96 divisors (see below), whose sum is σ = 289608302592. Its totient is φ = 49368009600.

The previous prime is 130561099769. The next prime is 130561099787. The reversal of 130561099780 is 87990165031.

It is not an unprimeable number, because it can be changed into a prime (130561099787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15935485 + ... + 15943675.

It is an arithmetic number, because the mean of its divisors is an integer number (3016753152).

Almost surely, 2^130561099780 is an apocalyptic number.

130561099780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130561099780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144804151296).

130561099780 is an abundant number, since it is smaller than the sum of its proper divisors (159047202812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130561099780 is a wasteful number, since it uses less digits than its factorization.

130561099780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8825 (or 8823 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 49.

The spelling of 130561099780 in words is "one hundred thirty billion, five hundred sixty-one million, ninety-nine thousand, seven hundred eighty".